20131303113 has 32 divisors (see below), whose sum is σ = 30894998400. Its totient is φ = 12946348800.

The previous prime is 20131303103. The next prime is 20131303121. The reversal of 20131303113 is 31130313102.

It is a happy number.

It is not a de Polignac number, because 20131303113 - 2⁴ = 20131303097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20131303103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3643 + ... + 200688.

It is an arithmetic number, because the mean of its divisors is an integer number (965468700).

Almost surely, 2^20131303113 is an apocalyptic number.

It is an amenable number.

20131303113 is a deficient number, since it is larger than the sum of its proper divisors (10763695287).

20131303113 is a wasteful number, since it uses less digits than its factorization.

20131303113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204470 (or 204464 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 20131303113 its reverse (31130313102), we get a palindrome (51261616215).

The spelling of 20131303113 in words is "twenty billion, one hundred thirty-one million, three hundred three thousand, one hundred thirteen".